Two motor mechanics run their workshops side by side. The first one appears to struggle with every vehicle that comes to him for repairs. He does not seem to know what to o. Obviously he does not have adequate knowledge about cars. Everyone who takes his car to him leaves dissatisfied. Soon, word begins to spread that he does not know the job. The second mechanic is very different. Just by listening to the sound of your car engine running, he can tell what is wrong with it. So without much ado, he bends down to rectify the problem and in no time, the car is in good working condition.